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uploads/step-up.jpg

step-up adj. 加速的;增強的;促進的,上升的;【電學】增加電...

stepbrother

An assembly of metal-clad switchgear and a step-up outdoor substation are shown at the generating station . 在發電站處表示出了一組帶有金屬外殼的開關裝置和一個戶外升壓變電站。